Contents

# frozen_string_literal: true

require 'shellwords'

module Ffprober
  module Ffmpeg
    class Exec
      CHAPTER_SUPPORT = Gem::Version.new('2.0.0')

      def initialize(finder = Ffprober::Ffmpeg::Finder)
        @finder = finder
      end

      def json_output(filename)
        `#{@finder.path} #{ffprobe_options} #{Shellwords.escape(filename)}`
      end

      def ffprobe_version_output
        @ffprobe_version_output ||= begin
          if @finder.path.nil?
            ''
          else
            `#{@finder.path} -version`
          end
        end
      end

      def ffprobe_options
        base_options = '-v quiet -print_format json -show_format'\
                       ' -show_streams -show_error'

        if ffprobe_version.version >= CHAPTER_SUPPORT
          options = base_options + ' -show_chapters'
        end

        options || base_options
      end

      def ffprobe_version
        Ffprober::Ffmpeg::Version.new(self)
      end
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
ffprober-0.5.5	lib/ffprober/ffmpeg/exec.rb
ffprober-0.5.3	lib/ffprober/ffmpeg/exec.rb